Question

(x+3)^2=1 Me ajudem por gentileza

Answer 1

(x+3)² = (x+3) x (x+3) = 1                                (x+3) x (x+3) = x²+3x+3x+9
x²+6x+9=1
x²+6x+8=0
Delta = b²-4(a)(c)
Delta = 36 -4(1)(8)
Delta = 36 - 32
Delta = 4
x = -6 +- 2 / 2
x¹= -6+2 / 2 = -2
x²= -6-2 / 2 = -4